Refactor eventify urlpatterns to include new bookings endpoint

ledger/admin.py

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+from django.contrib import admin
+
+# Register your models here.

ledger/apps.py

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+from django.apps import AppConfig
+
+
+class LedgerConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'ledger'

ledger/models.py

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+from django.db import models
+from django.conf import settings
+
+User = settings.AUTH_USER_MODEL
+
+class RazorpayTransaction(models.Model):
+    # Optional: who this transaction relates to
+    user = models.ForeignKey(User,
+        on_delete=models.SET_NULL,
+        null=True, blank=True,
+        related_name="razorpay_transactions",
+    )
+
+    # Razorpay identifiers
+    razorpay_order_id = models.CharField(max_length=191, unique=True)
+    razorpay_payment_id = models.CharField(max_length=191, blank=True, null=True)
+    razorpay_signature = models.CharField(max_length=255, blank=True, null=True)
+
+    # Generic linkage to any domain object (order, booking, wallet topup, etc.)
+    reference_type = models.CharField(
+        max_length=100,
+        blank=True, null=True,
+        help_text="What this payment is for, e.g. 'booking', 'wallet_topup', 'ticket'",
+    )
+    transaction_id = models.CharField(
+        max_length=100,
+        blank=True, null=True,
+        help_text="ID of the related for the transaction",
+    )
+
+    # Amount info (Razorpay uses smallest unit, e.g. paise)
+    amount = models.BigIntegerField(help_text="Amount in paise")
+    currency = models.CharField(max_length=10, default="INR")
+
+    # Status & method
+    status = models.CharField(
+        max_length=50,
+        help_text="created/authorized/captured/failed/refunded",
+    )
+    method = models.CharField(
+        max_length=50,
+        blank=True, null=True,
+        help_text="card/netbanking/wallet/upi/etc",
+    )
+    email = models.EmailField(blank=True, null=True)
+    contact = models.CharField(max_length=20, blank=True, null=True)
+
+    # Errors
+    error_code = models.CharField(max_length=100, blank=True, null=True)
+    error_description = models.TextField(blank=True, null=True)
+
+    # Extra data
+    notes = models.JSONField(blank=True, null=True)
+    raw_gateway_response = models.JSONField(
+        blank=True, null=True,
+        help_text="Full payload from Razorpay",
+    )
+
+    # Timestamps
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+    captured_at = models.DateTimeField(blank=True, null=True)
+
+    def __str__(self):
+        return f"{self.razorpay_payment_id or self.razorpay_order_id} - {self.status}"
+
+    def __save__(self):
+        if not self.transaction_id: 
+            self.transaction_id = str(uuid.uuid4().hex[:10]).upper()
+        super().save(*args, **kwargs)

ledger/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

ledger/views.py

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+from django.shortcuts import render
+
+# Create your views here.